Multiple inverted masks don't work.

Forum|Forum|7 years ago
February 23, 2018
17 replies
41248 views

Short Version:

I am trying to put 3 inverted opacity masks on one image but the way the program works right now it won't let you do that.

So the question is - How do you remove multiple parts of an image?

Long Version:

I shot a music video for a friend with my sony z5u. I got shots when I was there that I planned to green screen myself into later. The reason for green screening myself in is that I am a ghost, so I have the opacity level down on my image. Most of the chroma-key shots dropped in like clockwork but 2 need some masking fx. I got through making one of the three masks on one of the shots and found out quickly when I started the second mask that you can't have 2 inverted masks. I've seen recommendations on other posts to use nesting. I tried it but all it did was move the problem to a new sequence so I am at a loss for how that's supposed to help. I also saw posts that said all you have to do is access a drop down menu that doesn't exist anymore. So that's a no go. Tried other solutions as well and tech support said moving it over to After FX didn't make a difference.
It doesn't seem like it should be this hard to do something so seemingly simple that basic garbage mattes could accomplish 15 years ago. Any help would be appreciated.

Correct answer cre8vimp

Does this help?

https://youtu.be/m0h5JnT82aY

Show previous replies

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Erwin22

Participant

I FOUND AN EASY SOLUTION! I needed to cut off the top corners of my green screen videos to get rid of the darker green and ran into the same problem. One side was easy to mask in opacity, but I couldn't invert the other. I ended up just ADDING a CROP EFFECT, then I MASKED THE CROP, and did a 100% crop on one side! Works for multiple masks on one crop effect too.

kevinthomas

Participant

Here's a possible work-around that worked for me when I encountered the same puzzle.

ALT-drag the clip up one layer to stack the clip on top of itself. Do this as many times as you have elements that you want to invert-mask, so if you have THREE elements you want to invert-mask, you'll have FOUR video layers of the same clip (one original layer, and one for each masked element).

On each of the duplicated clips use the mask feature in the OPACITY effect that comes default on every clip (located right under the MOTION effect). Since you're only using one mask on each clip, you can invert each mask.

This may not work if the elements you are invert-masking need to pass over each other -- I don't know how the masks will interact in that case..

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guillermof31791111

Participant

I believe, It easer to make a mask for entire area (inverted) and put others masks up the first (no inverted) for rest pieces from the first mask (I dont know if i explain right).

Its like rest areas from the first area with the next areas.

Yo he conseguido el efecto de poner varias fotos en una foto con tres marcos, haciendo primero una mask invertida para los tres marcos y luego he ido poniendo mascaras encima para ir restando el resto de los marco.

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calvinwfrance

Participant

The only solution that works in this case seems to nest the sequences. You can keep adding a new inverted mask to each nested sequence.

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guillermof31791111

Participant

Hello.

Firt put a big mask inverted (for all zones) and later up put mores mask without inverted in the next areas you want.

cesilee

Participant

You can use multiple compositions, too. I do the larger mask in the first composition, then right click on the comp and choose "new comp from the selection" and create another mask in a different area.